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2nd workshop on Middleware for Grid Computing, MGC '04

作者： Venugopal, Srikumar Buyya, Rajkumar Winton, Lyle GRIDS Laboratory Dept. of Computer Science and Software Engineering University of Melbourne Australia Experimental Particle Physics Group School of Physics University of Melbourne Australia

ISBN: (纸本)1581139500

Large communities of researchers distributed around the world are engaged in analyzing huge collections of data generated by scientific instruments and replicated on distributed resources. In such an environment, scientists need to have the ability to carry out their studies by transparently accessing distributed data and computational resources. In this paper, we propose and develop a Grid broker that mediates access to distributed resources by (a) discovering suitable data sources for a given analysis scenario, (b) suitable computational resources, (c) optimally mapping analysis jobs to resources, (d) deploying and monitoring job execution on selected resources, (e) accessing data from local or remote data source during job execution and (f) collating and presenting results. The broker supports a declarative and dynamic parametric programming model for creating grid applications. We have used this model in grid-enabling a high energy physics analysis application (Belle Analysis software Framework) on a grid testbed having resources distributed across Australia. Copyright 2004 ACM.

关键词： High energy physics

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CoDIMS-G: A data and program integration service for the grid

CoDIMS-G: A data and program integration service for the gri...

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2nd workshop on Middleware for Grid Computing, MGC '04

作者： Fontes, V. Schulze, B. Dutra, M. Porto, F. Barbosa, A. National Laboratory for Scientific Computing Computer Science Dep. Brazil Military Institute of Engineering System Engineering Dep. Brazil Swiss Federal Institute of Technology Lausanne Database Lab. Switzerland Federal University of Espírito Santo Computer Science Dep. Brazil

ISBN: (纸本)1581139500

Grid services provide an important abstract layer on top of heterogeneous components (hardware and software) that take part into a Grid environment. In this scenario, applications, like scientific visualization, require access to data of non-conventional data types, like fluid path geometry, and the evaluation of special user programs on these data. In order to support such applications we are developing CoDIMS-G, which is a data and program integration service for the Grid. CoDIMS-G provides users transparent access to data and programs distributed on the Grid, as well as dynamic resource allocation and management. We conceived a new node scheduling algorithm and designed an adaptive distributed query engine for the grid environment. Copyright 2004 ACM.

关键词： Data visualization

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"Gridifying" aerodynamic design problem using gridRPC 2nd

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2nd international workshop on Grid and Cooperative Computing, GCC 2003

作者： Ho, Quoc-Thuan Ong, Yew-Soon Cai, Wentong Parallel and Distributed Computing Centre School of Computer Engineering Nanyang Technological University 639798 Singapore

ISBN: (纸本)3540219889

This paper presents a "gridifying" process for aerodynamic wing design as a case study of complex engineering design problems. In order to assist engineers and scientists to solve the problems on the Grid environment effectively, we developed an API based on GridRPC, a Remote Procedure Call standard interface for Grid-enabled applications. In this work, we also provide mechanisms to reduce communication cost and schedule GridRPC requests across multiple clusters on the Grid. These facilities are incorporated in our GridRPC API implementation. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Grid computing

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Effective OpenMP extensions for irregular applications on cluster environments

Effective OpenMP extensions for irregular applications on cl...

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2nd international workshop on Grid and Cooperative Computing, GCC 2003

作者： Guo, Minyi Cao, Jiannong Chang, Weng-Long Li, Li Liu, Chengfei Department of Computer Software The University of Aizu Aizu-Wakamatsu City Fukushima965-8580 Japan Department of Computing The Hong Kong Polytechnic University Kowloon Hong Kong Department of Information Management Southern Taiwan University of Technology Tainan County Taiwan School of Computer and Information Science University of South Australia Mawson LakesSA5095 Australia

ISBN: (纸本)3540219935

Sparse and unstructured computations are widely used in Scientific and engineering Applications. Such problem inherent in sparse and unstructured computations is called irregular problem. In this paper, we propose some extensions to OpenMP directives, aiming at efficient irregular OpenMP codes to be executed in parallel. These OpenMP directives include scheduling for irregular loops, inspector/executor for parallelizing irregular reduction, and eliminating ordered loops. We also introduce implementation strategies with respect to these extensions. © Springer-Verlag Berlin Heidelberg 2004.

关键词： Application programming interfaces (API)

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Adaptive real-time publish-subscribe messaging for distributed monitoring systems 2

Adaptive real-time publish-subscribe messaging for distribut...

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2nd IEEE international workshop on Intelligent Data Acquisition and Advanced Computing systems, IDAACS 2003

作者： Wang, Qiang Xu, Jun-Gang Wang, Hong-An Dai, Guo-Zhong Intelligence Engineering Lab. Institute of Software Chinese Academy of Sciences P.O.Box 8718 Beijing100080 China

ISBN: (纸本)0780381386

Many complex distributed real-time applications, monitoring and controlling the external environment, require sophisticated processing and sharing of an extensive amount of data under critical timing constraints. We present adaptive real-time publish-subscribe (RTPS) messaging service for distributed real-time applications, and four primitives are defined for expressing the adaptive RTPS. Furthermore, adaptive RTPS is incorporated into an active real-time database (ARTDB) named Agilor by translating RTPS primitives into subscription objects and ECA rules. We also apply real-time scheduling algorithm to protocol processing for improving predictability and minimizing priority inversions during message transmission. The experimental results indicate the idea is feasible, and the current implementation shows better performance. © 2003 IEEE.

关键词： Real time systems

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Using TOP-C and AMPIC to port large parallel applications to the Computational Grid

Using TOP-C and AMPIC to port large parallel applications to...

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2nd IEEE/ACM international Symposium on Cluster Computing and the Grid

作者： Cooperman, G Casanova, H Hayes, J Witzel, T Northeastern Univ Coll Comp Sci Boston MA 02115 USA Univ Calif San Diego Dept Comp Sci & Engn San Diego CA 92103 USA Univ Calif San Diego San Diego Supercomp Ctr San Diego CA 92103 USA

ISBN: (纸本)0769515827

Porting large parallel applications to new and various distributed computing platforms is a challenging task from a software engineering perspective. The primary aim of this paper is to demonstrate how the development time to port very large applications to the Computational Grid can be significantly reduced. TOP-C and AMPIC are software packages that have each seen successful applications in their respective domains of parallel computing and process creation/communication over the Computational Grid. We combined the two packages in I man-week, thereby leveraging several man-years of previous independent software development. As a real world test case, the 1,000,000 line Geant4 sequential application was then deployed over the Computational Grid in 3 man-weeks by using TOP-C/AMPIC. The cluster parallelization of Geant4 using TOP-C is now included as part of the Geant44.1 distribution, and the integration of TOP-C/AMPIC and the Globus protocols will additionally enable the use of the fundamental Grid middleware services in the future. (C) 2003 Elsevier Science B.V. All rights reserved.

关键词： Computational Grid master-worker parallelism TOP-C AMPIC Geant4

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Using TOP-C and AMPIC to port large parallel applications to the Computational Grid

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FUTURE GENERATION COMPUTER systems-THE international JOURNAL OF ESCIENCE 2003年第4期19卷 587-596页

关键词： Computational Grid master-worker parallelism TOP-C AMPIC Geant4

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2nd international workshop on Applications of Graph Transformations with Industrial Relevance, AGTIVE 2003

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2nd international workshop on Applications of Graph Transformations with Industrial Relevance, AGTIVE 2003

ISBN: (纸本)3540221204

The proceedings contain 45 papers. The special focus in this conference is on Web Applications, Data Structures and Data Bases. The topics include: Graph transformation for merging user navigation histories;towards validation of session management in web applications based on graph transformation;specifying pointer structures by graph reduction;specific graph models and their mappings to a common model;transforming graph based scenarios into graph transformation based junit tests;on graphs in conceptual engineering design;parameterized specification of conceptual design tools in civil engineering;design of an agent-oriented modeling language based on graph transformation;specification and analysis of fault behaviours using graph grammars;integrating graph rewriting and standard software tools;expressing component-relating aspects with graph transformations;modeling discontinuous constituents with hypergraph grammars;authoring support based on user-serviceable graph transformation;re-engineering a medical imaging system using graph transformations;behavioral analysis of telecommunication systems by graph transformations;specifying integrated refactoring with distributed graph transformations;correct translation of sequence diagrams into collaboration diagrams;meta-modelling, graph transformation and model checking for the analysis of hybrid systems;proper down-coloring simple acyclic digraphs;local specification of surface subdivision algorithms;transforming toric digraphs;graph-based specification of a management system for evolving development processes;graph-based tools for distributed cooperation in dynamic development processes;collage grammars for collision-free growing of objects in 3d scenes;a tool for visually specifying and generating visual editors and a visual definition tool for visual modeling environments.

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Dynamic change in workflow-based coordination of distributed services 1

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2nd international workshop on Self-Adaptive software, IWSAS 2001

作者： Bose, Prasanta Matthews, Mark G. Information and Software Engineering Department George Mason University FairfaxVA22030 United States The MITRE Corporation 7515 Colshire Drive McLeanVA22012 United States

ISBN: (数字)9783540365549

ISBN: (纸本)3540007318

The rapid advances in distributed computing and network-based technologies have paved the path for a networked economy. In such a networked economy, software technologies for coordination of distributed services according to specific business policies or workflows will play an everincreasing role. A critical success factor in such automation is the handling of dynamic changes in the workflow in a dependable manner. This paper introduces an integrated architecture, called SWAP, for dynamic adaptation of workflow policies. It develops systematic methods for the design of agents that perform workflow policy change coordination and uses model-checking methods to analyze safety properties. We use the domain of E-commerce for the ordering of products to demonstrate the concepts and methods of our approach. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Model checking

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Haptic virtual environment performance over policy-based IP networks: a case study

Haptic virtual environment performance over policy-based IP ...

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IEEE international workshop on Haptic, Audio and Visual Environments and Their Applications

作者： R.T. Souayed D. Gaiti G. Pujolle Wai Yu A. Marshall Université de Technologie de Troyes Troyes France Université Pierre et Marie Curie Paris France School of Electrical & Electronic Engineering Queen s University of Bevast Belfast UK

This paper reports on the performance of distributed haptic virtual environment (DHVE) applications deployed over policy-based IP networks. Our previous work reported that a best effort service in IP networks is inadequate for satisfying the quality of service (QoS) requirements of such applications. The current work tries to find out whether applying differentiated services (DiffServ) satisfies DHVE QoS requirements or at least improves them. This work also determines which policies should be applied on the network. A set of experiments was conducted over a network connecting two departments of the Queen's University of Belfast. The results are presented in this paper and compared with our previous work results.

关键词： Haptic interfaces Virtual environment IP networks Computer aided software engineering Quality of service Joining processes Video sharing Bandwidth Data security Telecommunication traffic

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